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A3942KLGTR-T Datasheet(PDF) 3 Page - Allegro MicroSystems

Part # A3942KLGTR-T
Description  A3942KLGTR-T for Automotive Applications
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A3942KLGTR-T Datasheet(HTML) 3 Page - Allegro MicroSystems

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Quad High-Side Gate Driver
for Automotive Applications
A3942
3
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
CBB2
IN4
IN3
IN2
IN1
RESETZ
ENB
CSZ
SCLK
SDI
SDO
Control
Logic
Fault
Monitor
FAULTZ
VCP
CP4
CP3
CP2
CP1
Charge
Pump
VCP UVLO
High
Side
Driver
CCP
VBB
Dx
Gx
Sx
GND
One of Four
High-Side Drivers
VCP
Open
Load
Detect
Vds
Monitor
Reference
Current
VDD
RDx
L
L
VDD
UVLO
CREG
Qx
VREG
Internal
Regulator
Thermal
Warning
IREF
CBB1
CDD
VDD
C12
C34
Voltage to VBB pin
and to Qx MOSFETs
must come from
the same supply
CREF
60.4 kΩ
U
V
L
O
GND
GND
GND
GND
GND
RGx
Functional Block Diagram
Name
Suitable Characteristics
Representative Device
C12, C34 0.33 μF or 0.47 μF, 25 V, X7R ceramic
CBB1
47 μF, 63 V, electrolytic
EGXE630ELL470MJC5S
CBB2
0.22 μF, 100 V, X7R ceramic
CCP
1 μF, 16V, X7R ceramic
CDD
0.47 μF, 16 V, X7R ceramic
CREF
47 pF, 16 V, X7R ceramic
CREG
0.22 μF, 16 V, X7R ceramic


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